package ch03;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class ExtThreadPool {
    public static class MyTask implements Runnable {
        public String name;

        public MyTask(String name) {
            this.name = name;
        }

        @Override
        public void run() {
            System.out.println("running:id:" + Thread.currentThread().getId());
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {

            }
        }
    }

    public static void main(String[] args) {

        ExecutorService service = new ThreadPoolExecutor(5, 5, 0L, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<>()){


            @Override
            protected void beforeExecute(Thread t, Runnable r) {
                System.out.println("before"+((MyTask)r).name);
            }

            @Override
            protected void afterExecute(Runnable r, Throwable t) {
                System.out.println("after"+((MyTask)r).name);
            }

            @Override
            protected void terminated() {
                System.out.println("线程池退出");
            }
        };
        for (int i = 0; i < 5; i++) {
            service.execute(new MyTask("TASK-ID:" + i));
        }

        System.out.println(Runtime.getRuntime().availableProcessors());
        service.shutdown();


    }
}
